n.对手，(辩论、战斗中的)敌手

原形：adversary复数：adversaries

Great Britain and Germany were adversaries in the Second World War 英国与德国在第二次世界大战中曾互为敌国。
His rivals knew that they could expect no quarter from such a ruthless adversary.
他的竞争者明白，不能期望如此残忍的对手发善心。
he dictionary meaning of the term "opponent" is "adversary"; "enemy "; "one who opposes your interests".
字典里“对手”一词的意思是“敌手”；“敌人”；“与你的利益相悖的人”。
Hugo, consumed with anger and shame, sprang up, seized a cudgel, and came at his small adversary in a fury.
雨果又气又羞，一跃而起，抓起一根棍子，怒气冲冲地向他的小对手扑去。